Machine for shaping ferrules



(No Model.)

, H. 0. LGTHROP.

MACHINE PoR SHAPING FBRRULBS.

BEBES.

I Je liu?.

Henry Orw/Le Lathrop UNTTED STATES PATENT Gerlos,

lllCNlY OlIVlLLlQ liO'llIllOl, 0F BOS'ION, MASSACIILTSETTS.

MACHINE FOR SHAPING FERRULES.

SPECIFICATION forming part of Letters Patent No, 290,259, dated December 18, 1883,

Application tiled August l, IESS. (No model.)

Be it known that I. llnxnv Onviliru Lo- .LHROP, ol' Boston, in the county of Sullolk, of the Connnonwealth ol` Massachusetts, have invented a new and useful Improvement in Machinery for Shaping Ferrulcs; and I do hereby declare the saine to be described in the following specilication and represented in the accompanying drawings, of which- Figure lis a front elevation, and Fig. 2 a vertical section, ol a machine embodying my invention, the nature ol' which is defined in the claims hereinafter presented. liig. 2l is the end view ol' a cylindrical ferrule, while Fig. i is an end view ol` it as it appears after having been stretched in one direction and contracted in another by the said machine.

Tool or brush handle i'crrules are usually constructed as short eyliiulrical tubes, made either of sheet metal or et' wire, such wire, i'or being converted into a tube,being bent spirally about a mandrel or Ioriner, the coils ot the spiral being in the meantime laid closely together and connected by solder.

The purpose ot' the machine hereinafter de scribed is to expand or stretch laterally such a short tube or i'errule, in order to impart to it an elliptical, oval or pyramidal, or other desired forni in its transverse section, such form depending on those given to the devices which, extended within the tube, operate to stretch it one way and contract it another laterally of it.

In the drawings, and Il represent what I terni the two stretchers each being a stud whose transverse section is a circular, elliptical, oval, or polygonal segment. In Fig. 1 each of suoli studs is represented as semicircular in end view, each, therefore, being` a seniicylinder whose transverse section is a semi4 circle. Each of such stretchers projects from one of two plates, a and Z, in manner as shown. The upper of such plates is bolted to a stationary bar, c, the lower plate being secured to a carrier, d, arranged beneath the bar c, and adapted to slide vertically on and between stationary guides o c. Frein the said carrier a stift' rod,j", extends downward, and is jointed to the shorter arm of a level', y. This lever is to be supposed to have a heavy weight on its longer arm. The said rod, lever, and weight are to ell'eet upward movements ol' the said carrier and its stretcher.

Into a projection, lz, extending from the carrier d, a vertical rod, t, is screwed, such rod extending1 down through a stationary guide, It, and being at top furnished with a handwheel, l, whose periphery is milled or provided with a series of notches or teeth extending around it, to engage with a spring catch or pawl, m, ilxed to a post or standard, u.

Over the upper end of the rod 'i there is a earn, o, which is ixed on a rotary shaft, p, supported in boxes q q, projecting from the post u. A gear, r, engaging with a pinion, s, lixed on a driving-shaft, t, revolves loosely ou the shattp, and is connected thereto so as to revolve the shaft by means ot a clutch, n, properly applied to shaft, and provided with an elastic shipper, t. A spiral spring, w, when hooked 011 the shipper, serves to hold the parts of the clutch in engagement. '3y nnhooking the spring from the shipper e, the elasticity ot' the latter will move it so as to cause the gear r to be unclutehcd from the shaft p.

There is on the shaft p a notched cani, rr, formed as shown in Figs. l and 2. This cani operates with a spring, y, which at its upper part is secured to the post a, suoli springbeing furnished with a tooth, z, to bear against the periphery of the cani At its lower end the spring y is secured to a plate, C, which I term the ferrnlc-discharger,7 such plate being arranged between the bar c and carrier d, and extended laterally in opposite directions bc yond the two stretchers,in manner as shown in Fig. l. I `urther1nore, llanking the two stretchers, or arranged as shown in Fig. l, are two adjustable gages, D E, provided with adjustin g-screws F l, These gages are to slide horizontally toward or away from the stretchers, their distances from such stretchers being determined by the said screws. The gages are to hold the ferrule in its proper position on the upper stretcher, A, preparatory to the lower stretcher being depressed, in order to expand the ferrule in a vertical direction and contract it horizontally.

In using` this machine, the cylindrical ferrulc is to be placed on the upperstretcher so as to hang thereon, both stretcliers being extended within such ferrule. The shaft p, being in revolution in the direction denoted by the :trroW in Fig. 2, will revolve the cam o and canse it to depress the rod fr', wherebyY the Carrier d und the lower Stretcher will be forced downward. In descending, the lower Stretcher will stretch :1nd eontraet the ferrnle in manner as described, so :is with the upper Stretcher to reduce it to the required form in its transverse Section. (1)11theernnka, revolving l'znenongh for the tooth ofthe Spring 1/t0 enter the noteh of sneh eem, the dischnrgerC will be shot l'orwerd bythe Spring, :1nd will force the bent ferrnle off the stretcher A. downward movement ot' the euri-ier min be varied, es occasion may require, by turning` the screw-rod i, to either inerenee or diminish The extent o t' the extent of projection oi' snc-h rod above the en rrier.

I claim*- 1. The eon'lbinntion ofthe StationeryStretch er A with the movable stretcher B and the diselmrgjer C, h :wing mechanisms for operating them, Substantially as Set forth.

L. ,Ihe combination of the adjustable gages I) :1nd F. with the stationery Stretcher A, and with the movable Stretcher B and the disehzrrger C, provided with mechanisms for operating them, substantially as Set forth.

HENRY (')RVI'L'LB LOTHROP.

\\'tnesses:

,1. ll', Eem, l. B. Pnyrr. 

